2027 ICD-10-CM Diagnosis Code L41Parapsoriasis

ICD-10-CM Codes›L00–L99›L40-L45›L41

ICD-10-CM L41
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L41 is a non-billable ICD-10-CM category code for parapsoriasis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L41.0, L41.1, L41.3, and L41.4.

Code Identity

ICD-10-CM Code
L41
Billable Status
No — Non-Billable Category
Code Describes
Parapsoriasis
Short Description
Parapsoriasis
Same as the full description in the CMS dataset.
Chapter
L40-L45
Papulosquamous disorders

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL40-L45Papulosquamous disorders
CategoryL41Parapsoriasis
This CodeL41Parapsoriasis

Specific Coding for ParapsoriasisOverview

Non-specific codes like L41 require more characters. Use one of these billable codes instead:

  • Use L41.0 for Pityriasis lichenoides et varioliformis acuta

  • Use L41.1 for Pityriasis lichenoides chronica

  • Use L41.3 for Small plaque parapsoriasis

  • Use L41.4 for Large plaque parapsoriasis

  • Use L41.5 for Retiform parapsoriasis

  • Use L41.8 for Other parapsoriasis

  • Use L41.9 for Parapsoriasis, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L41: its own notes plus those printed at Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • poikiloderma vasculare atrophicans (L94.5)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Clinical InformationClinical

  • Parapsoriasis

    the term applied to a group of relatively uncommon inflammatory, maculopapular, scaly eruptions of unknown etiology and resistant to conventional treatment. eruptions are both psoriatic and lichenoid in appearance, but the diseases are distinct from psoriasis, lichen planus, or other recognized dermatoses. proposed nomenclature divides parapsoriasis into two distinct subgroups, pityriasis lichenoides and parapsoriasis en plaques (small- and large-plaque parapsoriasis).

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L41Overview

What is the ICD-10 code for parapsoriasis?

L41 is the ICD-10-CM category for parapsoriasis, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is L41 (Parapsoriasis) a billable code?

No. This is a category header that groups the codes for parapsoriasis, and headers cannot be submitted on claims. Claims for parapsoriasis need a more specific code from this category, such as L41.0, L41.1, and L41.3.

Can L41 be reported with L94.5?

Not as a rule. The Excludes1 note on L41 lists "poikiloderma vasculare atrophicans (L94.5)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).